Engineering

When the Contractor performs survey work, the Engineer shall
verify the Contractor’s accuracy by observation of the work and review of
notes. A state survey crew should be available for checking any part where
this accuracy is not obtained. The Contractor’s surveyor should cooperate with
the Engineer by providing the notes on critical work such as bridge seat
elevations, profiles of beams or girders, and grade for finishing the deck for
review and concurrence. Information that indicates the elevation of bridge
seats and deck grades have been properly set must be recorded in the project
file.

Relations between the Engineer and surveyor should be in the
spirit of cooperation toward achieving the common goal of bridges constructed
of specified quality, in plan location, and on proper grade that will benefit
both the state and the Contractor.

Construction
Plans (501.05)

When railroad involvement is required as specified in 501.05.A., it
is the Contractor’s responsibility to submit plans to the involved railroads
for acceptance at least 50 days before construction begins. The Contractor
shall supply the Engineer with documentation proving railroad acceptance.
Department acceptance is not required.

The following plans should be submitted to the Engineer at
least 7 days before construction begins. These plans shall be prepared by an
Ohio Registered Professional Engineer (PE) and checked by a second PE. No
Department acceptance is required.

Although no Department acceptance is required, these plans
should be utilized in the field as the standard to judge whether the contractor
is performing the work correctly.

Stop all operations that do not follow the prepared plans.
The Contractor must submit to the Engineer, any revised plans, prepared by an
Ohio Registered Professional Engineer, 24 hours before construction on the
deviated work begins.

If the Contractor requests to weld to a main structural
member, that are not shown on the contract drawings, he must submit a plan to
the Office of Structural Engineering for acceptance at least 20 days before
construction begins.

If a Contractor has to perform corrective work on structures
items, the Contractor must submit three copies of a corrective work plan(CWP),
to the Engineer, including supporting calculations, prepared by an Ohio
Registered Professional Engineer. The Engineer will submit the CWP to the
Office of Structural Engineering for review and acceptance prior to performing
corrective work.

When traffic is maintained while an overhead structure is
being removed, platforms, nets, or other devices must be provided to safeguard
the traveling public from falling objects that might fall directly onto the
roadway below, be deflected toward the traffic, or bounce into the traveled
lanes. Removal of superstructure concrete and structural steel shall, in no
case, take place directly over traffic due to the possibility of large pieces
falling through the protective devices.